A paralympian has had to slide down two flights of stairs on her bottom to exit a Queensland Event Cinemas when the lift broke down, and is calling on businesses to make disability access a priority.

Amanda Fraser, who has won multiple medals at paralympic events, says she had two experiences at the venue which left her feeling humiliated and discriminated against for her disability.

According to the Australian Bureau of Statistics, 18.3 per cent of the Australian population live with a disability, and disability advocates say accessibility still has a long way to go.